Kĩ Thuật Nuôi Cá Cảnh từ cơ bản đến nâng cao cho người mới

Some types of fish can be raised easily after a day of work, or with a number of households, a large number of fish can create a significant income. Some types of fish are commonly raised with simple techniques, but others require more careful technical care. Here is Dr. Tran Quoc Dinh, Director of Phnom Penh Central Technical Center, talking about the technique of raising some common types of fish. Please listen. Ladies and gentlemen, the design of a pond for raising some common types of fish can be done in a few hundred square meters. In order to raise them, we choose suitable places for water supply. In the area where we raise them, we design ponds that can be built with cement, sand, and concrete. We also care about doing the cleaning before and after raising them. We clean the ponds with insecticide for aquaculture. For the earth pond, we can dry the pond for 2-3 days, and the insecticide can both kill the insects and raise the pH of the water in areas with low pH. For aquaculture, the quality of water is very important. People usually care about the following indicators. First, the pH of the water. Second, the oxidation of oxygen. Third, the temperature, and some other indicators. For the pH indicators, we regularly check the ponds. Currently, there are fast-test tools on the market that are very easy to use. For the temperature, the types of fish have a suitable living temperature. Therefore, we can cover the upper part of the raised area to reduce direct sunlight on hot days. Under the pond, we can put a pool or add a swimming pool to the raised area. For the oxidation of oxygen, there are specialized tools to measure the oxygen level in the raised area. However, this equipment is expensive, so people usually use it by experience. Normally, the phenomenon of fish is usually in the early morning or after the rain. We have to immediately think about the lack of oxygen in the raised area, and we deal with it by using the equipment to raise the oxygen. We also have to change the fish water regularly to ensure that the fish water is always clean. We can change it periodically, 2-3 days at a time, depending on the water level. Or we can change the water level from 10% to 20% every day in the pond. When it comes to feeding fish, it depends on the type of fish we are raising. We should feed fish 1-2 times a day and eat at a fixed time to create a good contrast. We should not feed fish excessively while feeding fish will make the water source dirty. Blackhead seabream is a fish that is quite popular in the raised area. There is another name for it, which is the giant seabream. It depends on the shape and color of the fish. For example, the blackhead seabream has a snake skin, a small tail, and a fin. The blackhead seabream is able to give birth at the age of 4-5 months. The fish is able to give birth at the age of 5-30 months. The fish also has the ability to reproduce. The blackhead seabream can give birth again after a few hours. In terms of nutrition and care, the blackhead seabream is suitable for water conditions of pH 7-8.5 and 18-28 degrees. In terms of food, the blackhead seabream likes to eat a variety of food such as worm, cow, and fish. For the blackhead seabream, we can raise a group of fish in one batch. After a while, the fish will give birth. We will choose the fish of the right size to export to the market. The blackhead seabream is able to give birth at the age of 5-6 months. The fish is able to give birth again after a few hours. In terms of nutrition, the blackhead seabream is suitable for water conditions of pH 7-8.3 and 18-28 degrees. In terms of food, the blackhead seabream likes to eat a variety of food such as worm, cow, and fish. In the wild, the blackhead seabream likes to eat a variety of animal feed. We can raise a group of fish in one batch. The blackhead seabream is able to give birth again after a while. We can raise a group of fish in one batch. After a while, the blackhead seabream is able to give birth again after a few hours. In terms of nutrition, the blackhead seabream likes to eat a variety of food such as worm, cow, and fish. In terms of food, the blackhead seabream likes to eat a variety of food such as worm, cow, and fish.